Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:21:52

Orbital Elements for MKT1AA,AB

WDS:	MKT1AA,AB	WDS ID/Discoverer
P:	0.393	Orbital period (years)
a:	0.006690000000000001	Semi-major axis (arcseconds)
i:	103.0	Inclination (degrees)
Ω:	94.7	Longitude of ascending node (degrees)
T:	1989.522	Epoch of periastron passage (year)
e:	0.542	Eccentricity
ω:	170.7	Longitude of periastron (degrees)
Start-Year:	2025.0	Year
End-Year:	2025.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for MKT1AA,AB

Position:	003652.84+334309.7	Epoch-2000 right ascension and declination
WDS-ID:	00369+3343	WDS designation
Discoverer Code:	MKT1AA,AB	Discover designation and components
ADS number:	513	Aitken Double Star catalog
HD number:	3369	HD catalog number
Hipparcos number:	2912	Hipparcos catalog number
V1:	4.36	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1992	Date of last observation
Orbit grade:	1	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for MKT1AA,AB

WDS 6th Orbit including measures of MKT1AA,AB

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)

Ephemeris of MKT1AA,AB

Click to expand/collapse ephemeris:

Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.007    105.5
-------------------------

Disclaimer

Acknowledgements

The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.